Spicy Fried Chicken Kimchi Mayo Ciabatta Sandwich

Ingredients

• 1 lb (450 g) boneless, skinless chicken thighs
• 1 cup (125 g) all-purpose flour
• 1/2 cup (125 g) buttermilk
• 1 large egg
• 1 tsp (5 g) garlic powder
• 1 tsp (5 g) onion powder
• 1/2 tsp (2 g) cayenne pepper
• Salt and pepper, to taste
• Vegetable oil, for frying
• 1/2 cup (120 g) mayonnaise
• 1/4 cup (60 g) kimchi, finely chopped
• 1 tsp (5 g) sesame oil
• 1 tsp (5 g) lime juice
• 4 ciabatta rolls
• Fresh lettuce leaves
• Sliced cucumbers or pickled vegetables (optional)